b) 10
c) 11
d) 12
Answer:
Answer is a) 9
Step-by-step explanation:
9 x 4 = 36
36 + 5 =41
Hope this help (。・ω・。)
Edit:
or you can use this method
41 - 5 = 36
36 divides by 4, then you will get 9
28 is 35 percent of 80.
To find out what percent 28 is of 80, we can use the following formula:
(percent/100) × whole = part
In this case, 28 is the part and 80 is the whole.
Let's substitute the values into the formula:
(percent/100) × 80 = 28
To isolate the percent, we can divide both sides of the equation by 80:
(percent/100) = 28/80
Simplifying the right side of the equation:
(percent/100) = 0.35
Now, to solve for percent, we can multiply both sides of the equation by 100:
percent = 0.35 × 100
percent = 35
Therefore, 28 is 35 percent of 80.
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Volume of a cylinder = A(base)*height
Volume of a cone = 1/3*A(base)*height
Because the base and height of the cylinder and cone are the same, we can write
Volume of the cone = 1/3*A(base)*height =1/3*Volume of the cylinder
Volume of the cone = 1/3*Volume of the cylinder, so
Volume of the cylinder=3*Volume of the cone =3*258.9=776.6 cm³
Volume of the cylinder= 776.6 cm³
Answer:
776.7 cm^3
Step-by-step explanation:
the dog could reach 9 feet from the stake in any direction.
Using 3.14 for π, what is the approximate area of
the lawn, in square feet, the dog could reach from the
stake?
The area of the lawn that the dog can reach from the stake is 254.34 square feet.
The measurement that indicates the size of a region on a plane or curved surface is called the area. Surface area refers to the area of an open surface or the border of a three-dimensional object, whereas the area of a plane region or plane area refers to the area of a form or planar lamina.
Given that, the dog can reach 9 feet from the stake in any direction.
Therefore, the area that the dog can cover is a circle with a radius of 9 feet.
The area of the circle is:
A =π(9)²
A = 3.14 × 81
A = 254.34
Hence, the area of the lawn that the dog can reach from the stake is 254.34 square feet.
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Answer:
It has a single solution x=-3 y=26
Step-by-step explanation:
The ratios of coefficients of x and y are different, so the pair of equations has one solution. It is easy to tell the first offered solution (15, 17) does not satisfy the first equation, so that choice is eliminated.
Fortunately, the second offered solution, (x, y) = (-3, 26), satisfies both equations.
The equations have a single solution: (x, y) = (-3, 26).
Answer: The equation has a single solution x = -3 , y = 26.
( -3, 26 )
Step-by-step explanation:
3x + y =17 ---------------------(1)
x + 2y = 49 -------------------(2)
Using substitution approach
From (2)
x = 49 - 2y --------------------(3)
Now put (3) in equation (1) and solve.
3(49 - 2y) + y = 17
Open the bracket and solve
3 x 48 - 3 x 2y + y = 17
147 - 6y + y = 17
Gather like terms
-5y = 17 - 147
-5y = -130
Multiple through by (-1)
5y = 130
Divide by 5
y = 130/5
y = 26.
Substitute for y now in equation (3) to get the value of x
3x + y = 17
3x + 26 = 17
3x = 17 - 26
3x = -9
Now , divide by 3
x = -3
The equation had a single solution of x = -3 , y = 26
Chech.
3 x -3 + 26
-9 + 26
= 17